Hi,
I am Kaushal. I have read your description and can see that you would like to build a website like weebly application that you can sell on weebly app store. I have seen the website that you have provided in description and will provide you design and its functionality according to it.
I have expertise in WordPress with customization of core, adding custom functionality, development of custom plugins, API integration and adding payment.
I would love to speak with you further about taking this project on. If you'd like to view my previous work, take a look at my Freelancer Portfolio
Thanks!